A lid with reduced tone is genuinely at higher risk of pulling down and rounding after surgery if it isn’t specifically accounted for. This is one of the single biggest predictors of a poor outcome in lower eyelid surgery, and it’s assessed with a few different simple tests beyond the snap-back — including gently pulling the lid away from the eye horizontally (a distraction test) to check how far it stretches before returning. Patients with reduced tone typically need an additional support procedure built into the plan from the outset, rather than treated as an afterthought if a problem develops.

I assess what’s sometimes called the eye’s ‘vector’ — essentially, whether the front of the eye sits forward of, level with, or behind the front of the cheekbone, viewed from the side. This relationship strongly influences how the lower eyelid will behave after surgery. Patients with a more ‘negative vector’ (the eye sitting further forward relative to the cheek, with little to no cheek projection supporting it from below) are at meaningfully higher risk of lower lid complications, and need a more conservative, carefully supported surgical approach — sometimes combined with cheek volume restoration to improve the underlying support structure before or during eyelid surgery.

Under-eye bags aren’t all the same. Some are genuine fat bulging forward through a weakened membrane; others are more about hollowing beneath the eye (volume loss in the tear trough and cheek) creating a shadow that looks visually similar from a distance. A careful examination, sometimes with the patient looking in different directions and gently pressing on the eye to accentuate fat bulging, helps distinguish between the two. Since these need almost opposite treatment — removing or repositioning fat versus adding volume — getting this distinction right is fundamental to the plan, and treating one as if it were the other is a common source of disappointing results.

How much excess skin is present, and how elastic it still is, determines whether skin needs to be removed at all, and how conservatively. Over-removal of lower lid skin is one of the more common causes of a pulled-down result, so this is an area where caution matters more than ambition — I generally err toward removing less than seems necessary, since it’s far easier to remove more at a later date than to correct the effects of over-removal.

I always ask about dry eye symptoms — grittiness, excessive watering, discomfort with contact lenses or screens — and, where relevant, may involve an ophthalmologist in the assessment, sometimes with formal tear film testing. Lower eyelid surgery can temporarily affect tear film distribution during healing, so understanding your baseline eye comfort beforehand helps anticipate and actively manage this, rather than being caught off guard by it postoperatively.

Any prior eyelid surgery, trauma, or significant sun damage changes how the tissue will behave under further surgery, and is factored carefully into planning, including adjusting expectations about healing and scar tissue.

A canthopexy (tightening the tendon that anchors the outer corner of the eyelid, without detaching it) or a canthoplasty (a more involved version that does detach and reposition it) reinforces the lower lid’s structure. These are proactively recommended for patients with reduced lid tone or a negative vector, rather than added only if a problem emerges after the fact — this proactive approach is a significant factor in reducing complication rates.

As above, erring on the side of leaving slightly more skin than seems necessary is a deliberate strategy, not a compromise — the risk-reward calculation strongly favours caution in this specific area of the face.

For patients with early hollowing but minimal skin excess, under-eye dermal filler may be a reasonable option to explore before considering surgery, particularly for those not yet ready for a surgical recovery or who want to trial the effect of volume restoration first.